<span>29 protons and 27 electrons.
Since the element is copper, that automatically means that you have 29 protons. Any other number would be an element other than copper. The 2+ indicates that the ion has a positive charge of 2. So it is missing 2 electrons. Since a neutral atom would have 29 electrons and you're missing 2, the number of electrons will be 29 - 2 = 27
So the answer is 29 protons and 27 electrons.</span>
Answer:carbon, hydrogen and oxygen
Explanation:
Alcohol functional group is composed of carbon, hydrogen and oxygen
10 g of glue with 13 g of water ,
Mass ratio of the material can be calculated as:
8 g of sodium borate suspended in 11 g of water, mass ratio can be calculated as:
C. when electrons are transfered, and a pathway for electrons is provided.
